Draft-equalizer



i (No Model.) L. G. HARRIS.

DRAFT EQUALIZER.

No. 405,161. Patented June 11, 1889..

UNITED STATES PATENT ()EEIcE.

LISCUS O. HARRIS, OF OSKALOOSA, IOIVA.

DRAFT-EQUALIZER.

A SPECIFICATION forming part of Letters Patent No. 405,161, dated June11, 1889.

Application filed February 25, 1889. Serial No. 301,014. (No model.)

To (0Z6 whom it may concern.-

Be it known that I, LIsoUs O. HARRIS, a citizen of the United States,residing at Oskaloosa, in the county of Mahaska and State of Iowa, haveinvented certain new and useful Improvements in Draft-Equalizers; and Ido declare the following to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention has relation to improvements'in draft-equalizers, and thenovelty will be fully understood from the following description andclaims, when taken in connection with the annexed drawing, in which thefigure is a plan view of a draft-equalizing device constructed accordingto my improvements.

Before describing the details of construction, I desire to say that I amwell aware that it is not new to provide a draft-equalizer with a reardoubletree pivoted to the draftpole at such a point as to have one armtwice the length of the other, andto employ two levers in advance of thesaid doubletree, pivoted to the draft-beam, and one of the levers twicethe length of the other, the levers being respectively connected attheir pivot-points by a rod to the pivot-point of the doubletree, andthe outer ends of said doubletree connected by rods of equal length tothe long and short levers, respectively. It is obvious that with adevice of this construction there will be a considerable amount of sidedraft, the equalization of draft depending altogether upon the length ofthe levers and doubletree employed.

Referring by letter to the accompanying drawing, A indicates adraft-beam such as usually employed.

B indicates a doubletree, which may be of any suitable length andpivoted about midway of its length to the draft-beam A.

0 indicates a lever, which is pivoted at one end to the draft-beam, asshown, and its other end is adapted to receive a whiffletree fortheattachment of a draft-animal.

D indicates a lever, which should be of long as the lever O, and careneed not be taken to have it any particular length, it being onlynecessary to attain a length sufficient for the comfort of thedraft-animal at one side of the pole or beam. This beam or lever D ispivotally connected with the draftbeam A by the same pivot-pin thatconnects the short lever C. To the outer end of the beam D is attached adoubletree E, adapted to receive at opposite ends a singletree, asshown.

F indicates a connecting-rod, which connects the large lever D with oneend of the doubletree B, and the leverage or purchase which the twodraft-animals may be allowed will depend upon the fulcrum-point or pointat which the forward end of the rod F is attached to the lever D, theattachment being preferably at a point in close proximity to theattachment of the doubletree E.

G indicates arod, which connects the opposite end of the doubletree Bwith the short lever O, and the point of attachment with the said leverG is preferably adjacent to its pivotal point with the draft-beam A. Itwill thus be seen that the regulation of draft and the prevention oflateral draft do not depend upon the size of levers or doubletreeemployed, but solely on the fulcrum-points, where a greater or lesspurchase may be afforded to the draft-animals. It will also be observedthat the rod G is of a less length than the rod F.

The whiffletree H is connected with the lever 0 by means of aswivel-joint at a.

Having described myinvention,what I claim 1s The combination, with thedraft-beam A, of the doubletree B, pivoted midway of its length directlyto the draft-beam and without any intermediate device, the short leverO, pivoted at its inner end to the draft-beam and carrying the swivel Hat its outer end for the attachment of the singletree, the rod G,connecting said lever 0 near its pivotal point with one end of thedoubletree, the long lever D, pivoted at its inner end to the draft-beamand carrying at its outer end a clip for the attachment of thewhiffietree, and the straight rod F, pivotally connecting one end of the(loubletree B with the leverD, and near the outer end of the latter, sothat both levers will have unequal arms, substantially as specified.

In testimony whereof I affix my signature in presence of two Witnesses.

LISCUS (J. HARRIS.

Vitnesses:

O. D. REED, J. P. 0. HAND, Jr.

